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Small Nodules

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Part of the book series: Radiology Illustrated ((RADILL))

Abstract

Small nodules, usually less than 10 mm in diameter, are regarded to be centrilobular when the nodules are separated from pleural surfaces or the interlobular septa by a distance of several millimeters, usually centered 4–10 mm from the pleural or fissural surfaces or from interlobular septa [1, 2]. They are frequently associated with centrilobular branching nodular structures, thus forming the so-called tree-in-bud sign (Figs. 18.1 and 18.2) (see also Chap. 9). The small nodules represent lesions involving the small airways. However, vascular lesions involving the arterioles and capillaries may simulate the centrilobular small nodules and branching nodular structures (vascular tree-in-bud sign) [1, 3, 4] (Fig. 18.3).

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Lee, K.S., Han, J., Chung, M.P., Jeong, Y.J. (2014). Small Nodules. In: Radiology Illustrated: Chest Radiology. Radiology Illustrated. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-37096-0_18

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  • DOI: https://doi.org/10.1007/978-3-642-37096-0_18

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